E.g.f. satisfies: A(x) = ( exp(x*A(x)) + exp(x*A(-x)) )/2.
A198198
E.g.f. satisfies: A(x) = ( exp(x*A(x)) + exp(x*A(-x)) )/2.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =25a(5) =216a(6) =1561a(7) =19328a(8) =225681a(9) =3790720a(10) =54595921a(11) =1141489152a(12) =20620975849a(13) =519551642624
External references
- oeis: A198198